Can phone numbers start with 0?

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Tags

1. #national
2. #there
3. #finally
4. #number
5. #length
6. #always
7. #about
8. #mobile
9. #require
10. #countries
11. #answer
12. #insight
13. #leading
14. #include
15. #calling
16. #confusion
17. #fixed
18. #digits
19. #phone
20. #numbers
21. #distance
22. #since